it will be in the b.net app, keep checking there, they'll be 98% similar to the ptr ones though.
There's no point in being all excited about "official patch notes" - note that the few changes between 2.2.1 PTR and 2.2.1 on live didn't even go into the patch notes (like the removal of Mortick's Brace).
I got 2.3 too - if I switch to PTR. I mean, im from Europe, but I already got my client updated and its switched to US. And, even on the official US patch note website, they are not out. Soo.... dunno. Cake? Lucky? did you do anything, like restarting/clearing bnet cache?